Q2 of 128 Page 20

Following real numbers are expressed in decimal form. Find whether they are rational or not. If rational. express them in form p/q. Comment on factors of q:

Let 10 × = 23. 12121212…. ….eq(1)


As there are 2 repeating digits. So we multiply by 102


1000 × = 2312. 121212……….eq(2)


Subtracting (1) from (2):


990 × = 2289




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